first-order method 中文意思是什麼

first-order method 解釋
一階法
  • first : adj 1 最初的，最早的。2 最上等的，第一流的。3 基本的，概要的。4 高音（調）的。n 1 最初，第一；第...
  • order : n 1 次序，順序；整齊；（社會）秩序，治安；狀況，常態；健康狀態；條理；會場秩序；議事程序，日程；...
  • method : n 1 方法，方式；順序。2 （思想、言談上的）條理，規律，秩序。3 【生物學】分類法。4 〈M 〉【戲劇】...
  1. This paper starts with interrogatory with capm ; analyzes the most basic risk concept, the risk expression method ; clarify the concept of systematic risk with idiosyncratic risk ; questions about marketing portfolio, diversification investment. then, we accept the capm as a reasonable first order approximation

    本文的思路是先破后立，將研究的起點放在對capm的質疑上，從分析最基本的風險概念、風險的表示方法入手，層層抽絲撥繭，對系統性風險與非系統性風險的劃分、市場組合、組合投資等概念提出疑問。
  2. Proving several theorems in first order logic based on back - and - forth method

    向前向後法證明一階邏輯的幾個定理
  3. Monotone iteration method and upper and lower solutions were used to approach to the solution of the first - order integral boundary value problem on time scales form below and above by monotone convergent sequence

    摘要運用單調迭代方法和上下解方法構造了兩個單調序列，從上下兩個方向分別收斂到一階積分邊值問題。
  4. A simple method of solving first - order indefinite equation

    一次不定方程的簡易解法
  5. It shows that the method and the results can be used for designer, capital construction manager and researcher reference. 6 > the statistic parameters of load effect and resistance on fatigue reliability are studied in the paper. according to statistic analyzing of the real data from spot and the old test data, the fatigue reliability is calibrated on 8 details, which are provided in the code, by first order second moment ( fosm )

    6 、通過鋼結構吊車梁實測資料與以往疲勞試驗資料進行統計分析，提出了荷載與抗力的統計參數，用一次二階矩方法對鋼結構規范中規定的8類連接和構造型式的疲勞可靠性進行了校準分析，根據計算結果給出疲勞目標可大連理工大學博士學位論文一靠指標的建議值與分項系數的設計表達式。
  6. Data processing is performed by pc ， which includes detecting rough error by quartile method base on first order differential, adopting three points algorithm to eliminate deviations of rack displacement and installation, applying minimum containing area method to evaluate the sectional plane radius of roller and realizing it by genetic algorithm, adopting akima method to fit curve of roll profile

    主要的數據處理工作在上位機進行，採用基於差分法的分位數演算法剔除粗大誤差；採用三點式測量原理消除探頭的安裝及運動所產生的誤差；採用最小包容區域法評定軋輥半徑，並應用遺傳演算法實現最小包容區域法的尋優計算；採用阿克瑪插值方法進行輥型的曲線擬合。
  7. This dissertation focuses on the application of data fusion in two - phase flow regime identification. following is the main contribution of the dissertation. 1 ) based on quartile and first order differential, a new outlier detection algorithm is presented, experiments show that the method combining with low pass filter can remove gross error and unwanted frequency components

    本文的主要工作與創新點在於： 1 ）將分位數方法與一階差分法相結合，提出了一種基於一階差分的粗差剔除方法，該方法與低通濾波器的結合可以有效去除兩相流壓力波動信號中的粗大誤差以及信號頻帶以外的頻率成分。
  8. The main contents are as follows : ( 1 ) by employing the direct method, the soliton periodic amplification system in optical fiber link with loss is considered, and the adiabatic solution ( slowly varying portion ) and first - order correction ( rapidly varying portion ) for a single soliton case are presented

    本文的主要內容如下： （ 1 ）利用直接擾動方法對周期放大系統進行了理論分析，給出孤子周期放大系統的絕熱近似解和一級修正解的積分表達式，結果分析表明孤子在放大過程中一部分能量以色散波的形式流失，而這一色散波主要由孤子周期放大系統的一級修正解來刻畫。
  9. This paper introduces first - order predicate calculus and assertion method from precondition to postcondition into the research of refactoring. and a logic deduction system is put forward in this paper : refactoring reliability deduction system

    引入了一階謂詞演算和前後斷言方法，並且自定義了一個重構可靠性證明的邏輯推理系統：重構可靠性推演系統。
  10. A model representation method based on first order predicate logic

    一種基於一階謂詞邏輯的模型表示方法
  11. The third part : according to the verified structural damage identification method and supposing the to - be identified parameters to be independent and have normal distribution, the scheme of identifying bridge structure damage is proposed by using the probability damage identification method. assume the zero - order, the first - order and the second - order perturbation statistics of the frequencies and the mode shapes of the bridge structures are known, and substitute them into the statistics property formulas of the frequencies and the mode shapes, as a result an objective function including the mean values and the variance of all the identified parameters is established. set

    對于連續梁橋，當損傷位置位於跨中附近時，大多數無損傷單元的損傷概率均在10 %左右，可作為小概率事件，不發生損傷，但與損傷單元相鄰的無損傷單元，其損傷概率達到20 %以上，很難被排除，只有對這些單元進行二次識別，才能得到比較可靠的計算結果;如果損傷位於支點附近時，則不會出現上述情況，對于無損傷單元，損傷概率都小於10 % ，不發生損傷，損傷識別結果
  12. Application of weighted first order localization method in sideslope displacement prediction

    加權一階局域法在邊坡位移預測中的應用研究
  13. A new type of viscoelastic stochastic finite element method is established using first - order perturbation theory based on local averaging method of random field and karhunen - loeve expansion theory of random process. the amount of computations is greatly reduced by transforming correlated random variables to a set of uncorrelated random variables. the relations of different random response variables are analyzed and monte carlo simulations for viscoelastic stochastic structures are investigated

    基於隨機場的局部平均法以及隨機過程的karhunen - loeve分解理論，通過一階隨機攝動方法建立了考慮材料近似不可壓縮的粘彈性隨機有限元公式，由相關結構分解減少計算量，分析了各結構隨機響應量之間的關系，給出了數字特徵的計算方法，研究了粘彈性隨機結構的montecarlo模擬驗證方法。
  14. Based on lattice - valued propositional logic system lp ( x ) and lattice - valued first - order logic system lf ( x ), the author studied semantic and syntax properties of generalized lattice - valued modal logic system, and probed into a - resolution principle. the specific contents are as follows : part one the study of lattice - valued modal propositional logic system and its resolution method in this part, we introduced modal operators n ( necessary ) and p ( possible ) into lattice - valued propositional logic system lp ( x ), set up a new lattice - valued modal propositional logic system lmp ( x ), studied its semantic properties and syntax structure, proved the soundness and consistence of this system. based on these work, discussed a - resolution principle of lattice - valued modal propositional logic system lmp ( x ), gave out the rules of computing a - direct resolvent and a - self resolvent, and proposed detailed resolution method

    本文在格值命題邏輯系統lp （ x ）和格值一階邏輯系統lf （ x ）的基礎上，討論了廣義格值模態邏輯系統的語義及語法性質，並對其-歸結原理做了初步探討，主要在下述三個方面取得了研究成果：第一部分：關于格值模態命題邏輯系統及其歸結方法的研究在此部分，把模態運算元n （必然）和p （可能）引入格值命題邏輯系統lp （ x ） ，建立了新的格值模態命題邏輯系統lmp （ x ） ，並研究了它的語義刻畫及語法結構，證明了在此語義解釋和語法框架下的系統仍是-可靠的和協調的；在此基礎上，進一步研究了基於格值模態命題邏輯系統lmp （ x ）的-歸結原理，給出了計算-直接歸結式和-自歸結式的規則，並總結出具體的歸結方法。
  15. The tree - based approach used for jibx code generation ends up constructing methods in this depth - first order anyway, so the duplicate checks work as long as there are no cycles in the method call graphs mutually recursive methods

    Jibx代碼生成所使用的基於樹的方法總能按照深度優先順序構造方法；如果在方法調用圖中沒有循環（方法的相互調用） ，重復檢查是有效的。
  16. This thesis describes the three important methods for designing pid controller : imc - based method, frequency method and direct synthesis method. we respectively design the pid controllers for the first - order plus dead - time processes, second - order plus dead - time processes, non - minimum phase processes, integrating and unstable processes, then, performance assessment and robustness metrics are used to compare the pid controllers of the individual process

    論文著重研究了pid控制器的三種重要設計方法：內模法、頻域法和直接綜合法，並從確定性性能指標和魯棒性性能指標的角度，比較這些設計方法在一階加純滯后、二階加純滯后、非最小相位、積分和不穩定過程pid控制器設計中的應用效果。
  17. The first - order perturbation method correct for forcing decoupling method based on perturbation theory is put forward to decrease error ; iii. the complex modal method is introduced into analysis of non - classical damping systems to eliminate error of forcing decoupling method, and improve the complex modal response spectrum, which can apply to design of non - classical damping systems ; iv. for exerting the energy dissipation capability of each device, a two - step optimum method, whose controlling function is extremum expectation of interbedded displacement, is put forward to optimize the number and position of device ; v. the problem of iterative method applied to analyze energy dissipation systems is indicate, and give some primary advice based on pilot study

    為改善上述缺點，本文進行了以下的研究工作：在忽略耗能器附加質量的基礎上，推導出適用於耗能減震結構的攝動法，減少振型分解法在迭代計算過程中的工作量，加快計算速度；針對運動方程的強行解耦所產生的誤差，根據攝動法原理，對其進行一階攝動修正；為消除強行解耦振型分解法用於非比例阻尼結構分析時產生的誤差，引入狀態空間對系統進行復模態分析，並改進了基於復模態理論的、適用於非比例阻尼結構設計的雙反應譜方法；對于耗能器的數量和位置優化進行了一些探討和研究。
  18. And beginning with a perturbed nls equation, using a multi - scales perturbation expansion, we get the zero order and the first order equations, discuss the eigenstates of the operator in the equations, induct relevant " derivative states ", form the completeness of the bounded eigenstates of the associated operator in li space, and expand the corresponding parameters in the closure, get a series evolution equations of the coefficients in the expanded formulas, find the first order approximate solution by researching the evolution equations. this paper also gives the basis of this method - the completeness we have formed and the singular perturbation technique

    ） dinser方程的求解問題，討論了自伴運算元的本徵函數的正交性和完備性，介紹了尋求微分方程的近似解常用的攝動方法，並從帶有某種擾動項的nls方程出發，利用多重尺度的攝動方法得到了方程的零級近似方程和一級近似方程，通過對近似方程中運算元的特徵態的討論，引入適當的「導出態」 ，建立了運算元在l _ 2空間的特徵態的完備性。
  19. Furthermore the computer program ism for analyzing structural reliability is developed by using advanced first order second moment method and important sampling monte - carlo method

    分析了4種損傷：即疲勞、凹坑、腐蝕和海生物損傷，並推導出時變構件可靠性計算的有關公式。
  20. The numerical method to solve the equation for spatial amplification theory is described in detail. deduced first - order system equations from spatial instability theory and its eigenvalue problem are solved and neutral lines varied with mach numbers are given

    運用穩定性理論的空間放大理論，建立穩定性方程，得到一個六元一階方程組，然後求解該一階系統，計算並得到不同馬赫數下的中性穩定曲線，基於此得到不同馬赫數下流場的臨界失穩點和穩定區域。
分享友人
分享到 Line

分享到臉書